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Narrowband broadcasting method of Beidou ground based augmentation positioning message

A technology of ground-based augmentation and ground-based augmentation systems, applied in satellite radio beacon positioning systems, instruments, measuring devices, etc., can solve the problem that positioning messages cannot be sent quickly and accurately

Inactive Publication Date: 2019-03-05
武汉米风通信技术有限公司
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Problems solved by technology

[0003] The present invention provides a narrowband broadcasting method of Beidou ground-based enhanced positioning message, which solves the problem that the positioning message cannot be sent quickly and accurately

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  • Narrowband broadcasting method of Beidou ground based augmentation positioning message

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Embodiment Construction

[0022] A narrowband broadcasting method of a Beidou ground-based enhanced positioning message of the present invention comprises the following steps:

[0023] Beidou / GPS dual-mode positioning module obtains joint positioning data through GPS navigation system and Beidou satellite navigation system;

[0024] The wireless network communication module enables the ground real-time positioning terminal to communicate with the Beidou ground-based augmentation system through the 2G / 3G / 4G data service network;

[0025] The data service center receives the Beidou satellite navigation system signal and the joint positioning data of the Beidou / GPS dual-mode positioning module of the ground real-time positioning terminal, and calculates the GNSS difference between the Beidou satellite navigation system signal and the joint positioning data according to the reference coordinates of the ground-based augmented reference station The correction amount is sent to the Beidou / GPS dual-mode positi...

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Abstract

The invention provides a narrowband broadcasting method of a Beidou ground based augmentation positioning message. A Beidou / GPS dual-mode positioning module obtains combined positioning data by meansof a GPS navigation system and a Beidou satellite navigation system; a wireless network communication module enables networking communication between a ground real-time positioning terminal and a Beidou ground based augmentation system via the service network; a data service center receives a signal of the Beidou satellite navigation system and the Beidou / GPS dual-mode positioning module combinedpositioning data of the ground real-time positioning terminal, and a GNSS differential correction between the signal of the Beidou satellite navigation system and the combined positioning data is calculated according to a reference coordinate of a ground based augmentation reference station, and sent to the Beidou / GPS dual-mode positioning module of the ground real-time positioning terminal; and the Beidou / GPS dual-mode positioning module combines the GNSS differential correction of the Beidou ground based augmentation system with correction of the combined positioning data, obtains final positioning data, and sends the final positioning data to a narrowband sending unit, and a sending unit receives the signal, processes the data and then sends the message.

Description

technical field [0001] The invention relates to the technical field of satellite positioning and information transmission. Background technique [0002] With the continuous development of society, due to the increase of high-rise buildings in the city and the congestion of vehicles, problems such as inaccurate positioning or being affected by other objects will appear in this crowded environment. Therefore, it is particularly important to obtain accurate positioning data and to process and send the positioning data in an orderly manner. At present, the positioning system mainly uses radio technology to send data, which has a large degree of delay and interference. If the key positioning data in an emergency cannot be sent out quickly and accurately, the practicability of the data will be affected. Contents of the invention [0003] The invention provides a narrow-band broadcasting method of the Beidou ground-based enhanced positioning message, which solves the problem tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S19/33G01S19/07
CPCG01S19/07G01S19/33
Inventor 余少波
Owner 武汉米风通信技术有限公司
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